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DataPRO/Modules/PreviousDBVersions/Version57/DatabaseExport/.svn/pristine/70/705232b5373f7e99c47b08957b62769d601458c7.svn-base

@@ -0,0 +1,133 @@
+using System;
+using System.Collections.Generic;
+
+namespace DatabaseExport
+{
+    /// <summary>
+    /// handles storing/retrieving settings from a db
+    /// assumes DB connection is already established or connection information has already been set for db
+    /// </summary>
+    public class SettingsDB
+    {
+        private static SettingsDB _instance = null;
+        private static object _MyLock = new object();
+
+        private static SettingsDB Instance
+        {
+            get
+            {
+                lock (_MyLock)
+                {
+                    if (null == _instance)
+                    {
+                        _instance = new SettingsDB();
+                    }
+                    return _instance;
+                }
+            }
+        }
+
+        private Dictionary<string, Setting> _SettingsLookup = new Dictionary<string, Setting>();
+
+        private SettingsDB()
+        {
+        }
+
+        /// <summary>
+        /// retrieves a global value, creates using default value if property doesn't exist yet
+        /// </summary>
+        /// <param name="id"></param>
+        /// <param name="defaultValue"></param>
+        /// <returns></returns>
+        public static string GetGlobalValue(string id, string defaultValue)
+        {
+            lock (_MyLock)
+            {
+                if (!Instance._SettingsLookup.ContainsKey(id))
+                {
+                    Instance._SettingsLookup[id] = new GlobalSetting(id, defaultValue);
+                }
+                return Instance._SettingsLookup[id].PropertyValue;
+            }
+        }
+        public static int GetGlobalValueInt(string id, int defaultValue)
+        {
+            string sValue = GetGlobalValue(id, defaultValue.ToString(System.Globalization.CultureInfo.InvariantCulture));
+            int d = defaultValue;
+            if (!int.TryParse(sValue, System.Globalization.NumberStyles.Any, System.Globalization.CultureInfo.InvariantCulture, out d))
+            {
+                return defaultValue;
+            }
+            else { return d; }
+        }
+        /// <summary>
+        /// returns the global value for given property, or the default value if no value currently exists
+        /// </summary>
+        /// <param name="id"></param>
+        /// <param name="defaultValue"></param>
+        /// <returns></returns>
+        public static bool GetGlobalValueBool(string id, bool defaultValue)
+        {
+            string sValue = GetGlobalValue(id, defaultValue.ToString(System.Globalization.CultureInfo.InvariantCulture));
+            bool b = defaultValue;
+            if (!Boolean.TryParse(sValue, out b))
+            {
+                return b;
+            }
+            else { return b; }
+        }
+
+        /// <summary>
+        /// stores an application global property in the database
+        /// </summary>
+        /// <param name="id"></param>
+        /// <param name="value"></param>
+        public static void SetGlobalValue(string id, string value)
+        {
+            lock (_MyLock)
+            {
+                if (!Instance._SettingsLookup.ContainsKey(id))
+                {
+                    Instance._SettingsLookup[id] = new GlobalSetting(id, value);
+                }
+                else
+                {
+                    Instance._SettingsLookup[id].SetValue(value);
+                }
+            }
+        }
+        public static void SetGlobalValueInt(string id, int value)
+        {
+            lock (_MyLock)
+            {
+                if (!Instance._SettingsLookup.ContainsKey(id))
+                {
+                    Instance._SettingsLookup[id] = new GlobalSetting(id, value.ToString(System.Globalization.CultureInfo.InvariantCulture));
+                }
+                else
+                {
+                    Instance._SettingsLookup[id].SetValue(value.ToString(System.Globalization.CultureInfo.InvariantCulture));
+                }
+            }
+        }
+        /// <summary>
+        /// stores an application global property value in the database
+        /// </summary>
+        /// <param name="id"></param>
+        /// <param name="value"></param>
+        public static void SetGlobalValueBoolean(string id, bool value)
+        {
+            lock (_MyLock)
+            {
+                if (!Instance._SettingsLookup.ContainsKey(id))
+                {
+                    Instance._SettingsLookup[id] = new GlobalSetting(id, value.ToString(System.Globalization.CultureInfo.InvariantCulture));
+                }
+                else
+                {
+                    Instance._SettingsLookup[id].SetValue(value.ToString(System.Globalization.CultureInfo.InvariantCulture));
+                }
+            }
+        }
+    }
+}